Personalise thermoses flasks with laser engraving is a practical way to expand your catalogue with useful products, reusable and in demand all year round: thermos flasks, thermal mugs, thermal cups, and stainless steel bottles.

Laser engraving provides a permanent and professional finish, without inks, vinyls, or adhesives. In this post, we explore which products you can engrave, which materials work best, what you need to work with cylindrical objects, and why it is worth incorporating this type of customization into your business.

Which thermal products can be customised with laser engraving?

When we talk about customising thermoses with laser engraving, we are not just referring to the classic thermos. There are various thermal products that can expand your catalogue and cater to different types of clients.

Thermos and thermal bottles

They are the basics that work best: practical, reusable, and easy to sell throughout the year. They fit very well in personalized gifts, corporate merchandise, events, welcome packs, and online stores.

Thermal Mugs

They are a very interesting option for daily use: office, car, travel, gym, or desk. Their compact format makes them a convenient product with great potential for simple personalisations such as names, initials, logos, or short phrases.

Thermal mugs

They have a more professional and promotional focus. They work especially well for businesses, offices, hospitality, meeting rooms, or corporate gifts. Additionally, having a larger surface allows for more visible engravings, provided the area is suitable for laser engraving.

Which materials work best for laser engraving?

The material of the product is one of the most important aspects. Not all thermoses, cups, or thermal mugs react the same to laser, which is why it is advisable to choose suitable products and check the result before adding them to the catalogue.

Stainless steel with colour coating

It is often one of the most recommended options for laser engraving. In many models, the laser removes the outer coating and reveals the stainless steel, creating a metallic finish that can vary depending on the product: silver, gold, iridescent, or similar.

There are also special finishes, such as iridescent, pearlescent, or mirror effect. They can be engraved, but it is advisable to conduct a preliminary test as the contrast may vary depending on the light, angle, and exterior finish.

Uncoated stainless steel

It can also be engraved, although the result tends to be more subtle. Since there is no colour layer to remove, the contrast will depend on the metal's finish and the type of laser used.

It is an elegant option, but it is advisable to check beforehand if the engraving will have sufficient visibility for the client's intended use.

Textured surfaces

Textured surfaces provide a different and more premium finish to the product. They are a good option for thermoses, cups, or bottles that aim to stand out compared to the usual smooth finishes.

On these types of surfaces, laser engraving can blend seamlessly with the material's relief, creating an elegant personalisation with more visual character. Fine and uniform textures usually provide the cleanest results.

Before adding them to the catalogue, it is advisable to conduct a test to verify the actual finish and provide the customer with an accurate sample of the result.

What type of laser is used for engraving thermoses?

To customise stainless steel thermos flasks, thermal mugs, or jars, you can work with different types of lasers depending on the product finish and the result you are aiming for.

At Brildor, the most suitable equipment for this type of application are:

• Diode Laser: useful for engraving many products with an exterior coating, removing the surface layer and revealing the metal beneath.
• CO₂ Laser: can be used on certain laser-coated or laser-prepared products, provided the material is compatible.
• IR Laser: particularly useful for marking metallic materials and achieving precise finishes on stainless steel.
• MOPA Laser: recommended for more demanding work on metal, as it allows greater control over marking and can provide more defined finishes on stainless steel.
• Ultraviolet (UV) Laser: Suitable for high-precision marking on delicate surfaces or products that require lower thermal impact, provided the material is compatible.

In thermoses with a coloured coating, the laser usually leaves a metallic or silver finish. On uncoated stainless steel, the result can be more subtle.

There is no one-size-fits-all setting for all heat presses: it depends on the equipment, power, speed, material, and finish. As we always recommend, conduct a test before production.

What do you need to customise thermoses with laser engraving?

When engraving thermos flasks, thermal mugs, or jugs, it's not just the machine that matters. It's also important to consider that these are cylindrical products and their surfaces do not behave the same way as a flat piece.

Compatible laser machine

The first step is to have the right equipment for the material you are going to work with. For stainless steel products or those with a laser-compatible coating, it is important to ensure that the machine can correctly mark or remove the outer layer of the product.

The result will depend on the type of laser, the finish of the thermos, and the parameters used, which is why it's always advisable to conduct a test before production.

Rotational accessory

Thermos flasks, travel mugs, and many pitchers have a cylindrical body. For this type of item, the rotary attachment of your laser machine is essential when you want to achieve a uniform and well-aligned engraving.

This accessory rotates the product during operation, helping to maintain the correct distance between the laser and the surface.

It is especially recommended for:

• Wide logos
• Large designs
• Engraving wraps
• Pieces with a lot of curvature
• Productions of multiple units

In small and localized engravings, it may not be essential, depending on the product and the equipment. However, if you are going to regularly add these items to your catalogue, rotational will provide you with more control, repeatability, and a professional finish.

Laser-compatible products

This point is crucial. The product must be compatible with laser engraving and provide a proper finish after testing.

Before selling it, check:

• Body material
• Type of coating
• Exterior finish
• Available engraving area
• Stability when placing it in the machine
• Actual engraving result

Advantages of customising thermos flasks, cups, and thermal mugs

Including thermoses, mugs, and thermal jugs in your catalogue makes sense because they are easy-to-sell products, useful for many customers, and suitable for various campaigns.

Practical and everyday use product

It is not an item that is used once and forgotten. A thermal mug or flask can accompany the customer to the office, the car, the gym, on trips, at events, or during workdays. This increases the visibility of the customization and enhances the perception of the product.

Sale throughout the year

They work in many seasons and contexts: Christmas, back to school, fairs, corporate gifts, promotional campaigns, birthdays, corporate packs, or event merchandise. They do not rely on a single peak date.

High perceived value

A personalised thermos is often perceived as a more complete gift than other small promotional products. If the engraving is well done, it conveys quality, durability, and attention to detail.

Reusable product

Being reusable, they fit very well in catalogues of practical and sustainable gifts. For companies, it is an interesting option when they are looking for useful merchandise, with brand presence and designed to last.

Suitable for individual and bulk orders

You can sell a personalized unit with a name or prepare orders of several units for companies, clubs, schools, gyms, or events. This allows you to cater to both individual gifts and corporate orders without changing the product.

For which clients are engraved thermoses interesting?

Laser-engraved thermoses suit a wide range of profiles, making them a good option for expanding your catalogue without restricting yourself to a single type of customer.

They can work particularly well for:

• Companies, as a gift for employees, clients, or branding activities.
• Events and fairs, where useful and well-presented products are sought after.
• Gyms, clubs, and associations, for merchandising or personalised team gifts.
• Schools and academies, as a gift for students, teachers, or promotions.
• Gift shops and e-commerce, offering individual personalization of names, initials, or phrases.
• Hospitality and offices, for internal use, corporate gifts, or brand image.

The key is to present the product as something practical, reusable, and durable. It's not just a promotional item: it's a daily-use product with permanent customization.

Frequently asked questions about customizing thermoses with laser engraving

Which thermos can be customised with laser engraving?Many stainless steel thermos flasks can be customised, especially those with an exterior coating suitable for laser. It is advisable to conduct a preliminary test to check the finish.

Can thermal mugs and thermal jugs also be engraved?Yes. Many thermal mugs, thermal bottles, and thermal jugs can be customised with laser engraving if the material and surface are suitable.

What laser is needed to engrave thermos flasks?It depends on the material and the finish of the product. For stainless steel and metallic products, various equipment can be used, such as diode laser, CO₂, IR, MOPA, or ultraviolet, as long as the material is compatible and the result has been tested.

Is a rotary accessory necessary for engraving thermos flasks?For cylindrical objects, it is highly recommended, especially if the engraving is large, wide, or wraps around. The rotary accessory helps maintain a more uniform engraving on curved surfaces.

What colour does the engraving appear on a thermos?On many thermoses with a coloured coating, the engraving appears metallic or silver as it reveals the stainless steel beneath. The result may vary depending on the product, the coating, and the type of laser used.

Can iridescent thermos flasks be laser engraved?Yes, as long as they are suitable for laser engraving, but the contrast may vary due to the pearlescent, mirror, or iridescent effect of the surface. It is advisable to conduct a test before offering them for large orders.

Does laser engraving on thermos flasks fade?It should not fade with normal use, as it is neither ink nor an adhesive. The laser marks or removes part of the product's surface.

Is it profitable to sell laser-engraved thermos flasks?It can be, especially if you work with proven products, clearly define the customisation options, and offer the service to both individual customers and businesses.

Why include engraved thermoses in the catalogue?Because they are useful, reusable products with a good perceived value and demand throughout the year. Additionally, they fit perfectly in personalised gifts, merchandising, and corporate campaigns.

Incorporate laser-engraved thermoses into your catalogue.

Incorporating laser-engraved thermos flasks, cups, and jugs is a simple way to expand your catalogue with useful, reusable, and easy-to-sell products throughout the year.

Choose laser-suitable products, check the finish before production, and rely on the appropriate equipment to work on cylindrical surfaces with precision. This way, you can offer durable, professional customisation with a high perceived value to your customers.

If you have any questions, share them with us in the comments. Our team will be delighted to provide you with answers and assistance. You can also contact our Customer Service department directly for additional help.

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